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[PowerPC] Precommit test case for PR46759. NFC.

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(cherry picked from commit 817767abeec8343b20de83f8b1b2c8c20bbbe00a)
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Kai Luo 2020-07-17 08:36:30 +00:00 committed by Hans Wennborg
parent e24a844646
commit 6395f30cf6
1 changed files with 58 additions and 0 deletions
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58
test/CodeGen/PowerPC/pr46759.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -ppc-asm-full-reg-names -verify-machineinstrs \
; RUN: -mtriple=powerpc64le-linux-gnu < %s | FileCheck \
; RUN: -check-prefix=CHECK-LE %s
define void @foo(i32 %vla_size) #0 {
; CHECK-LE-LABEL: foo:
; CHECK-LE: # %bb.0: # %entry
; CHECK-LE-NEXT: std r31, -8(r1)
; CHECK-LE-NEXT: std r30, -16(r1)
; CHECK-LE-NEXT: mr r30, r1
; CHECK-LE-NEXT: mr r12, r1
; CHECK-LE-NEXT: .cfi_def_cfa r12, 0
; CHECK-LE-NEXT: clrldi r0, r12, 53
; CHECK-LE-NEXT: stdux r12, r1, r0
; CHECK-LE-NEXT: stdu r12, -2048(r1)
; CHECK-LE-NEXT: stdu r12, -4096(r1)
; CHECK-LE-NEXT: .cfi_def_cfa_register r1
; CHECK-LE-NEXT: .cfi_def_cfa_register r30
; CHECK-LE-NEXT: .cfi_offset r31, -8
; CHECK-LE-NEXT: .cfi_offset r30, -16
; CHECK-LE-NEXT: clrldi r3, r3, 32
; CHECK-LE-NEXT: li r6, -4096
; CHECK-LE-NEXT: ld r4, 0(r1)
; CHECK-LE-NEXT: mr r31, r1
; CHECK-LE-NEXT: addi r3, r3, 15
; CHECK-LE-NEXT: rldicl r3, r3, 60, 4
; CHECK-LE-NEXT: rldicl r3, r3, 4, 31
; CHECK-LE-NEXT: neg r5, r3
; CHECK-LE-NEXT: li r3, -2048
; CHECK-LE-NEXT: divd r7, r5, r6
; CHECK-LE-NEXT: and r3, r5, r3
; CHECK-LE-NEXT: add r3, r1, r3
; CHECK-LE-NEXT: mulld r6, r7, r6
; CHECK-LE-NEXT: sub r5, r5, r6
; CHECK-LE-NEXT: stdux r4, r1, r5
; CHECK-LE-NEXT: cmpd r1, r3
; CHECK-LE-NEXT: beq cr0, .LBB0_2
; CHECK-LE-NEXT: .LBB0_1: # %entry
; CHECK-LE-NEXT: #
; CHECK-LE-NEXT: stdu r4, -4096(r1)
; CHECK-LE-NEXT: cmpd r1, r3
; CHECK-LE-NEXT: bne cr0, .LBB0_1
; CHECK-LE-NEXT: .LBB0_2: # %entry
; CHECK-LE-NEXT: addi r3, r1, 2048
; CHECK-LE-NEXT: lbz r3, 0(r3)
; CHECK-LE-NEXT: ld r1, 0(r1)
; CHECK-LE-NEXT: ld r31, -8(r1)
; CHECK-LE-NEXT: ld r30, -16(r1)
; CHECK-LE-NEXT: blr
entry:
%0 = zext i32 %vla_size to i64
%vla = alloca i8, i64 %0, align 2048
%1 = load volatile i8, i8* %vla, align 2048
ret void
}
attributes #0 = { "probe-stack"="inline-asm" }